Wanna get textured player heads without using SkNBeet addon?
No problem! You can do so using this expression, that i've made up for myself!

Code (Text):

1. import:
2.   org.bukkit.Material
3.   org.bukkit.inventory.ItemStack
4.   org.bukkit.SkullType
5.   com.destroystokyo.paper.profile.ProfileProperty
6.   java.util.UUID
7.   org.bukkit.Bukkit
8.  
9. expression [%integer%] textured player head[s] with value %string%:
10.   return type: Item
11.   get:
12.     if expression-1 is set:
13.       set {_skull} to new ItemStack(Material.SKULL_ITEM and expression-1 and SkullType.PLAYER.ordinal())
14.     else:
15.       set {_skull} to new ItemStack(Material.SKULL_ITEM and 1 and SkullType.PLAYER.ordinal())
16.     set {_skullmeta} to {_skull}.getItemMeta()
17.     set {_UUID} to UUID.randomUUID()
18.     set {_playerprofile} to Bukkit.getServer().createProfile({_UUID})
19.     {_playerprofile}.setProperty(new ProfileProperty("textures" and "%expression-2%"))
20.     {_skullmeta}.setPlayerProfile({_playerprofile})
21.     {_skull}.setItemMeta({_skullmeta})
22.     return {_skull}

Examples:

Code (Text):

1. command /example:
2.   trigger:
3.     give 5 textured player heads with value "texture value of player head." to event-player
4.     set slot 0 of expression-1's current inventory to textured player head with value "texture value of player head." named "Your display name of item" with lore "Your lore"

Requires:

• Skript-mirror
• PaperSpigot (You could do this in spigot too, but it would require some NMS stuff, which im too lazy to do, because i'm always using paper.)